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Subject: Re: [PATCH v6 26/45] bcache: dynamically allocate the md-bcache
 shrinker
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From:   Muchun Song <muchun.song@linux.dev>
In-Reply-To: <20230911094444.68966-27-zhengqi.arch@bytedance.com>
Date:   Mon, 18 Sep 2023 15:24:02 +0800
Cc:     Andrew Morton <akpm@linux-foundation.org>, david@fromorbit.com,
        tkhai@ya.ru, Vlastimil Babka <vbabka@suse.cz>,
        Roman Gushchin <roman.gushchin@linux.dev>, djwong@kernel.org,
        Christian Brauner <brauner@kernel.org>,
        "Paul E. McKenney" <paulmck@kernel.org>, tytso@mit.edu,
        steven.price@arm.com, cel@kernel.org,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        yujie.liu@intel.com, Greg KH <gregkh@linuxfoundation.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux-MM <linux-mm@kvack.org>, linux-fsdevel@vger.kernel.org,
        Coly Li <colyli@suse.de>,
        Kent Overstreet <kent.overstreet@gmail.com>,
        linux-bcache@vger.kernel.org
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 <20230911094444.68966-27-zhengqi.arch@bytedance.com>
To:     Qi Zheng <zhengqi.arch@bytedance.com>
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> On Sep 11, 2023, at 17:44, Qi Zheng <zhengqi.arch@bytedance.com> wrote:
> 
> In preparation for implementing lockless slab shrink, use new APIs to
> dynamically allocate the md-bcache shrinker, so that it can be freed
> asynchronously via RCU. Then it doesn't need to wait for RCU read-side
> critical section when releasing the struct cache_set.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

Acked-by: Muchun Song <songmuchun@bytedance.com>

Thanks.